a^2n 1-4a^2n 4a^2n-1/a^n 1 a^n-6a^n-11+1/2+1/3+1/x若2x-3y=0,求1/2xy/x^2+y^2-y^2/2x^2-y^2的值

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a^2n 1-4a^2n 4a^2n-1/a^n 1 a^n-6a^n-11+1/2+1/3+1/x若2x-3y=0,求1/2xy/x^2+y^2-y^2/2x^2-y^2的值
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a^2n 1-4a^2n 4a^2n-1/a^n 1 a^n-6a^n-11+1/2+1/3+1/x若2x-3y=0,求1/2xy/x^2+y^2-y^2/2x^2-y^2的值
a^2n 1-4a^2n 4a^2n-1/a^n 1 a^n-6a^n-1
1+1/2+1/3+1/x
若2x-3y=0,求1/2xy/x^2+y^2-y^2/2x^2-y^2的值

a^2n 1-4a^2n 4a^2n-1/a^n 1 a^n-6a^n-11+1/2+1/3+1/x若2x-3y=0,求1/2xy/x^2+y^2-y^2/2x^2-y^2的值
哥们,你的题目给错啦